When you run cargo test, Rust's test runner will execute all functions annotated with #[test]. #[test] fn is_true_when_even() { assert!(is_even(4)); } #[test] fn is_false_when_odd() { assert!(!is_even(5)); } } assert!(is_even(4)); uses the assert! macro to ensure ...
这是Rust 的 assert_eq! 宏实现。 由于篇幅太长,我仅复制了第一个分支: macro_rules! assert_eq { ($left:expr, $right:expr) => ({ match (&$left, &$right) { (left_val, right_val) => { if !(*left_val == *right_val) { panic!(r#"assertion failed: `(left == right)` left:...
assert_eq!宏用于比较两个值是否相等,如果不相等,则会触发断言失败。 示例使用assert_eq!宏: rustCopy code fn main() { letx=5;lety=3+2;assert_eq!(x, y, "x and y must be equal"); // 如果 x 和 y 不相等,则会触发断言失败println!("x and y are equal");} 在上面的示例中,如果x和y...
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Rust Version current nightly Anything else? No response I suspect it has to do with the formatting? Kinda. It has everything to do with the expansions, but it is dictated byassert_eq!'s need to bind the expressions it recieves, because it wants to both compare them and print them in ...
Code use std::sync::LazyLock; static TEST = LazyLock::new(|| {}); playground Meta rustc --version --verbose: rustc 1.81.0-nightly (3cf924b93 2024-06-15) binary: rustc commit-hash: 3cf924b934322fd7b514600a7dc84fc517515346 commit-date: 202...
不可以。目前，您必须自行检查差异或使用float-cmp crate。同时检查f32常量。
因为assert失败时assert_eq!会调用Debug::fmt打印两个参数，方便调试。如果不想实现Debug，可以assert!(a...
[oeasy]rust38 assert assert_eq 断言 测试 test should_p...。听TED演讲,看国内、国际名校好课,就在网易公开课
[oeasy]rust38 assert assert_eq 断言 测试 test should_panic,oeasy教你玩转rust编程语言入门,于2020年01月19日上线,由oeasy上传。[oeasy]rust38 assert assert_eq 断言 测试 test should_panic。西瓜视频为您提供高清视频,画面清晰、播放流畅,看丰富、高质量视频就上